Is Port Lavaca, TX tap water safe?
The short answer
3 of the 5 utilities serving Port Lavaca have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Texas’s records: City of Port Lavaca, Gbra Calhoun County Rural Water System and Port Alto HOA District 1.
City of Port Lavaca, which serves the most people here, has 1 result above the legal limit, 2 results above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 125 ppb, above the legal limit.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Port Lavaca’s ZIP codes, from EPA’s estimates.
- Open report
City of Port Lavaca
Texas · serves 12,000 people · about 340 in Port Lavaca
1 result above the legal limit, 2 results above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 125 ppb, above the legal limit.
24 health-based violations since 2016
- Open report
Gbra Calhoun County Rural Water System
Texas · serves 4,482 people · about 120 in Port Lavaca
1 result above the legal limit, 2 results above EPA’s new limit, which takes effect in 2029, 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Total trihalomethanes (TTHM) at 126 ppb, above the legal limit.
12 health-based violations since 2016
- Open report
Port Alto HOA District 1
Texas · serves 213 people · under 100 in Port Lavaca
1 result above the legal limit and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 88.4 ppb, above the legal limit.
11 health-based violations since 2016
- Open report
Port Alto WSC
Texas · serves 96 people · under 100 in Port Lavaca
1 result above the health goal. The worst: Lead at 3.5 ppb, above the health goal.
No health-based violations since 2016
- Open report
Shoalwater Flats Association
Texas · serves 171 people · based in Port Lavaca
1 result above the limit’s level with no violation recorded and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 221 ppb, above the limit’s level, no violation.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in City of Port Lavaca’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana Clean Water Machine (AQ-CWM2)
Countertop
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), PFOA, PFOS, Lead
Ninja HydraSense Countertop Water Filtration System (WF1001)
Countertop
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), PFOA, PFOS, Lead
PUR PLUS Faucet Filtration System, Horizontal (PFM400H)
Faucet mount
- NSF listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: Total trihalomethanes (TTHM), PFOA, PFOS, Lead
Water testing near Port Lavaca
The 2 labs Texas certifies closest to Port Lavaca, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Pace Analytical Services, LLC -Dallas TX
Victoria, TX · about 26 miles
Certified for bacteria
Victoria County Public Health Department Water Laboratory
Victoria, TX · about 26 miles
Certified for bacteria
Texas Well Owner Network, Texas A&M AgriLife Extension: Well Informed screening events, where well owners bring in water samples to be screened for common contaminants, followed by an hour-long session explaining the results. Upcoming events are on the network's calendar. Trainings, Texas Well Owner Network.
All 80 certified labs for TexasZIP codes in Port Lavaca
Which ZIP codes are in Port Lavaca: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: TCEQ, drinking water laboratories approved for public water system samples; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Port Lavaca
Towns nearby with a page of their own.
What to do next
- Read City of Port Lavaca’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About Total trihalomethanes (TTHM)What it does to health, where it comes from, and the certification claim that addresses it.About Total trihalomethanes (TTHM)
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water